Cotton Germplasm Collection of Uzbekistan

Cultivated cotton (Gossypium spp.) is the main source of natural fiber and oilseed as well as one of the most important crops for bioenergy production. Although cotton is native to the tropics and subtropics, it is naturally cultivated in more than 80 countries. The Uzbekistan cotton germplasm collection is one of the largest among worldwide collections, representing accessions and species not only with wide geographic and ecological niches but also with large amplitude of morphobiological and genetic diversity. More than 40 Ato G and K-genomes of wild Gossypium species as well as ~7,500 cotton accessions are preserved in the Institute of Genetics and Plant Experimental Biology at the Academy of Sciences of Uzbekistan (IGPEB). There are a number of lines and cultivars with useful agronomic traits (early maturing, long fiber, high yield, disease tolerant, etc.) that have been developed using Uzbek cotton germplasm resources. A history of the collection development, maintenance, management and problems of ex situ conservation as well as utilization of germplasm resources are reviewed in this paper. _____________________________________________________________________________________________________________

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